Use this Apple Watch strap adaptor when you want to change the look of your watch for different events, like going to work or a party. It's perfect for Apple Watch users who love to switch up their style. This adaptor is designed to fit all Apple Watch Series 1 - 10, SE (1st & 2nd Gen), Ultra, and Ultra 2. It works with standard 20mm watch bands, and the spring bar mechanism makes changing straps a breeze.